Primary Montessori Day School 14138 Travilah Rd, Rockville, MD20850 Primary Montessori Day School is a private school that offers education programs for children ages two through nine. The…More school provides an 11-month school year schedule and features before-school and after-school care services available. Toddler, primary and elementary programs are available, as well as a summer program that offers educational and fun activities during July and August. The admission process involves a tour of the school, an application submission and an interview with the head of the school. Tours must be scheduled ahead of time. This school has been approved by the Maryland State Board of Education.